| 引用本文: | 尹红泽,陈文刚,李镕冰,吴华杰,井培尧,陈龙,宋文涛,谢永.3D打印ABS材料表面楔形织构的摩擦性能∗[J].中国表面工程,2021,34(4):158~166 |
| YIN Hongze,CHEN Wengang,LI Rongbing,WU Huajie,JING Peiyao,CHEN Long,SONG Wentao,XIE Yong.Friction Performance of Wedge-shaped Texture on the Surface of 3D Printed ABS Materials[J].China Surface Engineering,2021,34(4):158~166 |
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| 3D打印ABS材料表面楔形织构的摩擦性能∗ |
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尹红泽, 陈文刚, 李镕冰, 吴华杰, 井培尧, 陈龙, 宋文涛, 谢永
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西南林业大学机械与交通学院 昆明 650224
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| 摘要: |
| 为了制备出复杂、非对称的楔形三角织构,并验证织构具有减摩效果,以期此种表面织构在发动机部件中良好应用提供理论支持和技术指导,以丙烯腈-苯乙烯-丁二烯(ABS)高分子材料为样品,利用 3D 打印技术(FDM)分别加工出具有楔形凹坑表面试样与光滑表面试样。 在 MRTR-1 摩擦磨损试验机上进行回转式销-盘摩擦磨损试验,用体式显微镜观察工作表面的磨损形貌,通过 Fluent 有限元软件模拟仿真润滑油膜内部压力,并对仿真结果进行验证。 研究结果表明,与光滑无织构试样相比,表面楔形织构试样均有不同程度的减摩效果,且当尺寸为 2. 7mm 和面积占有率为 15. 94%时减摩效果最明显。 尺寸 2. 7 mm,固定转速 150 r/ min,10 N 载荷和 5 N 载荷工况下,顺时针楔形织构的摩擦因数比逆时针楔形织构的摩擦因数低。 这是因为在润滑油流动方向上,非对称织构也呈现出不同的流体动压效应,顺时针楔形织构比逆时针楔形织构流体动压力更大,承载力更高,减摩效果也就更好。 可为复杂形状表面织构的制备与应用提供良好的理论支持与技术指导。 |
| 关键词: 3D 打印 ABS 织构 摩擦磨损 面积占有率 |
| DOI：10.11933/j.issn.1007-9289.20210324003 |
| 分类号:TH117 |
| 基金项目:国家自然科学基金(51865053)、云南省教育厅科学研究基金(2021Y223)和西南林业大学教学改革重点(ZD201902)资助项目 |
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| Friction Performance of Wedge-shaped Texture on the Surface of 3D Printed ABS Materials |
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YIN Hongze, CHEN Wengang, LI Rongbing, WU Huajie, JING Peiyao, CHEN Long, SONG Wentao, XIE Yong
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College of Mechanical and Transportation, Southwest Forestry University, Kunming 650224 , China
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| Abstract: |
| In order to fabricate the complex and asymmetric wedge-shaped triangular texture and verify its antifriction effect, acrylonitrile-styrene-butadiene (ABS) polymer material was used as the sample, and 3D printing technology ( FDM) was used to process the sample with wedge-shaped pitting surface and the sample with smooth surface. The rotary pin-disk friction and wear test was carried out on the MRTR-1 friction and wear testing machine, and the wear morphology of the working surface was observed with the type microscope. The internal pressure of the lubricating oil film was simulated by the Fluent finite element software, and the simulation results were verified. The results show that, compared with the smooth and non-textured samples, the surface wedge textured samples have different degrees of friction reduction effect, and the friction reduction effect is the most obvious when the size is 2. 7 mm and the area occupancy is 15. 94%. The friction coefficient of the clockwise wedge texture is lower than that of the counterclockwise wedge texture under the loading conditions of 10 N and 5 N, with the size of 2. 7 mm, the fixed speed of 150 r/ min and the loading conditions of 10 N and 5 N. This is because in the direction of lubricating oil flow, the asymmetric texture also presents different fluid dynamic pressure effects. Clockwise wedge texture has higher fluid dynamic pressure and higher bearing capacity than counterclockwise wedge texture, so the friction reduction effect is better. Theoretical support and technical guidance are provided for the preparation and application of complex-shaped surface textures. |
| Key words: 3D printing ABS texture friction and wear occupancy rate |
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